Valve.



PATENTED DEG. 11,1906.

s. W. MILLER.

VALVE.

'APPLIOATIOK rum APB.18,1906.

mum

Samuel WM'iller Y anon:

4 is a top plan view 0 SAMUEL W. MILLER, OF COLUMBUS, OHIO.

VALVE- Specification of Letters Patent.

' Patented Dec. 11. 1906.

Application filed April18, 1906 Serial No. 812.291-

To all whom it may concern.-

Be it known that I, SAMUEL W. MILLER, a citizen of the United States, residing at C0- lumbus, in the county of Franklin and State 5 of Ohio, have invented certain new and useful Improvements in Valves; and I do hereby declare the followin to be a full, clear, and exact description 0 the invention, such as will enable others skilled in-the art to which to it a pertains to make and use the same.

his invention relates more particularly to that class of rotary valves in which the valve or plug proper is moved axially when the valve is turned to open the passage-way r 5 through it.

The object of the invention is to provide an improved and simplified construction of devices whereby great nicety in the adjustment of the means for moving the valve axiflwwflwvmat... 2o all secured and whereby com ensation for wear of the parts is provided for.

The invention consists in.the construction hereinafter described and claimed.

In the accompanying drawings, Figure 1 is 2 5 a central sectional view through the casing,

showing parts in full. Fi 2 is an elevation of the plug, showin the t eaded end in section. Fig. 3 is a etail in side elevation of the screw on which the plug works, and Fig. the screw shown in Fi 3. v

the several views, 1 designates a casing of ordinary construction PIOVlded with a tapered transverse opening having. a suitable seat for the rotary lug or valve 2 proper.

The stem of the va ve, by which it ma be turned, is provided with an ordinary stu ngbox or packing, as shown in the upper portion of 1. The plug is provided with an ordi- 0 nary o ening 2 for the ass e of the fluid p "it throug it. The lower end of e plu is axially internally threaded, as seen at 2 The smaller end of the plug-receiving opening is surrounded by a threaded flange 1", onto 5 which is turned a closing-cap 3.

4 designates a screw pro ecting from the center of a disk 4. The screw is made to fit the thread 2 of the plug, and the disk 4 is of a diameter about equal to the diameter of the threaded flange 1, or so that when the screw is put into place the disk can be pinched and he d tightly from turning by turning up the cap-3.

quire approximately a quarter-turn of the.

plug.

In use the seat and seat-engaging portions of the plug naturally wear away, so that the plug cannot be roperly seated and the passage closed. This wear is compensated for by removing the cap and adjusting the disk bearing the screw while the plug stands in the proper closing position or until approximately a uarter-turn only of the plug is practicable. ecause of this construction and because the disk bearing the screw may be turned through any degree, however slight, the proper adjustment of the screw to compensate for'wear or to take up lost motion is very quickly'and accurately made.

The forms and proportions of parts can be varied. For example, the disk need not be solid.

When the plug wears away, the opening movement can be limited by inserting one or between the upper end of t e plug and the bonnet.

What I claim, and desire to secure by Letters Patent, is

1. In a valve the combination of a casing having a tapered valve-seat, a tapered plu or valve roper in the casing to close on sai seat, sai plu having a threaded opening in its smaller en a screw to engage the threads of said opening, said screw rovided with a. laterally-extending part, and a ca to fix said laterally-extending part against t e casin in position with reference to said plug or va ve.

2. In a valve the combination of a casmg having a tapered valve-seat, a tapered plug or valve roperin the casing to close on sald seat, said p ug having a threaded opening in its smaller end, a screw to engage t e threads of said opening, said screw provided with a disk, and a ca engaging the casing to fix said disk against t e casing 1n position with reference to said plug or valve.

3. In a valve the combination of a cashaving a ta cred valve-seat sin-rounded at its smaller on b a flange, a tapered plug or valve proper in the casing to close on said 2 seams seat, said plu having a threaded opening in 1 In testimony whereof I aflix my signature its smaller end, asorew to engage the threads in presence of two witnesses. v

of said opening provided with a disk adapted to impinge a ainst said flange, and a cap to; SAMUEL MILLER 5 engage the ange and fix said disk against said flange in position with reference to said \Vitnesses OLIN J. Ross,

plug or valve. BENJ. F INCKEL. 

